Bar mechanism for type-writing machines.



0. PETERMANN.

BAR MECHANISM FOR TYPE WRITING MACHINES.

APPLIUATION FILED JUNE 12, 1909.

1,087,459. Patented Feb. 17, 1914,

M M] IVTOR 0 6130 Q21 nmaun/ ATTORNEY Y5 W/TNESSES WWI/2d iinrrnn STATES PATENT OFFICE.

OI-TO 'OFNEW YORK, N. Y., ASSIGNOR, I BY MESNE ASSIGNMENTS, "TO

' STANDARD TYPEWRITER COMPANY A CORPORATION OF NEW YORK.

BAR MECHANISM FOR, TYPE-WRITING- MACHINES.

Specification of Letters Patent. Pat t d a 1 7, 1914 -Application filed'June 12,1909. Serial No. 501,849.

To all whom may concern Be it known that I, O'i'ro PETER-MANN, a

' citizen of the Republic of Switzerland, and

a resident of New York, county and State of New York, have invented certain new and useful Improvements in Bar Mechanism for Type-Writing Machines, of which the following is a full, clear, and exact description.

This invention relates more particularly to the bar mechanism of a :foldable front strike or visible typewriting machine.

The primary object'of the invention is to provide simple and efiicient means for independently and detachably supporting a plurality of type-bars in such a way that each ty e-bar may be independently removed fi'om its support without'afiecting any of the other bars, and to provide simple means for operating) the bars so that the same may engage t e platen atthe front thereof to adapt the machine for visible writing.

A further object of the invention is to provide a simple and eilicient bracket, formlng a common support for the different type-bars, and to provide aplurality of independent devices so connected and held-to thebracket that the type-bars may be properly held thereto or removed therefrom as desired.

iththese and other objects in view, the

' invention will be hereinafter -more particularly described with referenceto'the accompanying drawings, which form a part of thisspecification, and will then be pointed out in the claims at the end of the description.

'in which the'carriage is adapted to be folded over abovethe keys, and while in the present invention the carriage and platen and their operating mechanisms are adapted 'to be naked and lowered on :the ir-me .of the machine and to be folded over above thefinger keys, and in which the type-bars have a front strike for visible writing, it is to be understood that the features of this .inventlon may be used in connection with other forms of typewriting machines.

The metallic frame 10 of the machine may be constructedand arranged in any suitable manner, and may consist of side members 11 and an integral back member, with an intermcdiate transverse horizontal bar 12 suitably fastened to the sidesof the frame and serving as a brace therefor, and a second transverse bar 13 at the front of the machine the whole frame being constructed of sheet metal with rounded edges for the-purpose of making the frame light and strong.

The key-levers 14 may have finger pieces 15, and are each provided intermediate its ends with an upwardly-extending part,16. This part 16 may be integral with the body portion and the Whole levermay be stamped from sheet metal or other material for strength and cheapness. The upwardlyextending part 16 of each key-lever is formed substantially'U-shaped when viewed from above, so that said levers may be readily and quickly hung or supported, each by a pair of hooks, from a plurality of transversely-extending bars or members 17 which are located under and extend downward from the transverse bar 18, as shown best in Fig. 1. As shown there are three bars 17, and each bar is provided with an upwardly turned or hooked end 19 Wl'llCh'lS adapted to fit in the notches 20 of the keylevcrs 14, so that said levers will be supported on substantially a knife edge and at two points some distance to each side of the body portionin substantially the same manner as set forth in my Patent No. 1,0S1,1l0,

dated Dec. 9, 1913.

Each key-lever 14 is provided with an aperture on its under side in which is adapted to be fastened one end of a spring .21, and the otherend of-said spring is heldtc a projecting part '22 stamped or forced from a transverse bar 23 at the lower part of themachine wherebythe said levers may be restored to theirnormal position. The inner ends of the levers are each provided with an aperture in which one end of a link 24 is held, and the other end of said link is pivotally held'to a "type-bar 25, there being a type-her "for each keyalever- {Rhee atype bars 25 are each pivoted at 26 in a slotted part 27 of a transversely-extending and curved bracket or bar 28 which is held to the rear of the machine frame by means of screws 29 or otherwise. This bracket or bar 28 may be made in a solid piece, and

cal part is slotted at its upper end 32 to span the sides of its cooperating type-bar 25. The upper edge of the end 32 is beveled and is adapted to engage the pintle 26 on opposite sides of the type-bar, and said end serves as a lower bearing for said pintle, and to hold the type-bar removably in the recess 30, the said recess being formed by cutting away the bracket to form an overhanging portion. The device 31 is rovided with a tongue 33 projecting from t 1e vertical portion 31 and which enters one of the slots 27. of the bracket 28 to assist in holding the device from lateral or sidewise movement, and in addition to the tongue 33 the said device 13 provided with an aperture through which extends the stem of a screw 34. This screw 34 is adapted to engage a threaded aperture in the bracket and serves to force one part of the device against the lower surface of the bracket, the tongue 33 preventing any sidewise movement of the device. By removing the screw 34 of each type-bar the retaining device or member 31 may be lowered sufiiciently to permit any one of the type-bars 2-5 to be removed entirely independent of any of the other bars, or to be quickly inserted'therein and by proper adjustment of the screw 34 any wear that 4d suitably supported at its ends to the machine frame and said felt corresponds in its curvature to that of the bar or bracket 28 and to the arrangement of the type-bars.

A support or Frame 41 is arranged above the machine frame, and this support is provided with extended portions 42. These ex tended portions are pivotally held to slides 43 at each rear corner of the machine, and

these slides at the lower end are connected to one or more space levers 4:4: to adapt the slid s and frame or support to be, elevated. The support 41 has a carriage 45 mounted to move thereon, and on the carriageis a These type-bars are each suitable platen 46, the'means for elevating the support and carriage thus referred to being of any suitable construction and 0p erated in any desired way.

From the foregoing it will be seen that simple and efiicient means are provided whereby a number of type-bars may be pivotally held to a bracket each adapted to be independently removed without affecting -any of the other typebars: that said typebars are so mounted as to adapt the machine for visible writing; and that a simple bracket and independent devices mounted on said bracket are provided to properly hold the type-bars.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a typewriting'machine, the combination with a bracket having a plurality of slots, of a plurality of type-bars pivotally held in said slots each with an independent pintle, said slots being open transversely for the removal of the pintle and type-bars, angularly formed devices having one end adapted to engage the pintle and hold it in its slot, said device having a tongue fitting a groove in the bracket, and a screw for detachably holding each of said devices.

2. Ina typewritmg machine, the combination with a bracket having a plurality of slots, of a plurality of type-bars pivotally held in said slots each with an independent pintle, said slots being open transversely for the removal of the pintle and type-bars, angularly formed devices having one end adapted to engage the pintle and hold it in its slot. said device having a tongue fitting-a groovein the bracket, and means for detachably holding each of said devices to the bracket.

3. In a typewriting machine, the combination with a bracket having an over-hanging portion forming open seats and a plurality of slots intersecting said over-hanging portion, of a plurality of type-bars pivotally held in said slots each provided with an independent pintle adapted to rest in said seats on opposite,sides of its type-bar slot,

laterally projecting pintles adapted to be seated in said recesses, said recesses being open transversely for the removal of the pintles and type-bars, angularly formed devices having a vertical movement "and held to slide on said bracket one for each type-- bar, the vertical portion of each device having its upper end slotted and beveled and inglaterally projecting pintles adapted to adapted to span its cooperating type-bar and 'to engage the pintle on the under side thereof to hold the same in its recesses, a tongue integral with each device and entering the slot beneath the type-bar and holding the same against lateral movement, said device having .an opening therethrough, and a screw passing through said opening and engaging one of the threaded openings inwthe bracket and adapted to detachably hold the device to said bracket to permit each type bar to be independently removed.

5. In a typewriting machine, the combination with a bracket having a plurality of slots and provided With over-hanging portions forming recesses at the sides of said slots, of a plurality of type-bars having laterally pro ecting and independent pintles adapted to be seated in said recesses, said re cesses being open transversely for the removal of the pintles and type-bars, and'an gularly formed L-shaped devices held to slide on said bracket one for each type-bar, the vertical portion of each device having its upper end slotted and adapted to span its co-' operating type-bar and to engage the pintle to hold the same in its recess or hearing.

6. In a typewriting machine, the combination with a bracket having a plurality of vertical slots and provided with over-hanging portions forming recesses at the sides of said slots, of a plurality of type-bars havbe seated in said recesses, said recesses being open transversely for the removal of the pintles and type-bars, devices held to slide on said bracket one for each type-bar, the vertical portion of each device having its upper end slotted and adapted to span its cooperating type-bar and to engage the pintle on the under. side thereof to hold the same in its recess or bearing, a tongue integral with each device and entering the slot "beneath the type-bar to hold the same against lateral movement, and means for detachably holding the devices to said bracket to permiteach type-bar to be independently removed? 7IIn/a typewriting machine, the combination with a bracket having a plurality of slots, of a plurality of type-bars pivotally held in said slots each with, an independent pintle, said slots being open transversely for the removal of the pintle and type-bars, and angularly formed devices .having one end adapted to spanfe ach type-bar and engage the pintle ah'd hold it in its slot, and ineans for detachably holding said devices to the, bracket. y

This specification signed and witnessed this el-th day of June A. D. 1909.

' OTTO PETERMANN. W itnesses W. A. ToWNnR, J r., e. BARTELS.

copies of this patent may be obtained for five cents each, by addressing the Gommtssioher of Yetenta 

